Large strain phase-field based multi-material topology optimization
Författare
Summary, in English
A multi‐material topology optimization scheme is presented. The formulation includes an arbitrary number of phases with different mechanical properties. To ensure that the sum of the volume fractions is unity and in order to avoid negative phase fractions, an obstacle potential function, which introduces infinity penalty for negative densities, is utilized. The problem is formulated for nonlinear deformations, and the objective of the optimization is the end displacement. The boundary value problems associated with the optimization problem and the equilibrium equation are solved using the finite element method. To illustrate the possibilities of the method, it is applied to a simple boundary value problem where optimal designs using multiple phases are considered.
Avdelning/ar
Publiceringsår
2015
Språk
Engelska
Sidor
887-904
Publikation/Tidskrift/Serie
International Journal for Numerical Methods in Engineering
Volym
104
Issue
9
Dokumenttyp
Artikel i tidskrift
Förlag
John Wiley & Sons Inc.
Ämne
- Mechanical Engineering
Nyckelord
- Topology optimization
- Muliti-material
- Finite strain
Status
Published
Projekt
- Design of functionalized advanced polymer materials using optimisation techniques
ISBN/ISSN/Övrigt
- ISSN: 1097-0207